Which of the following terms is related to bones?

Osteopathy is the term closely related to bones. It derives from the Greek words "osteo," meaning bone, and "pathy," meaning disease or disorder. Osteopathy focuses on the diagnosis and treatment of conditions related to the skeletal system, including bones, joints, and connective tissues. This practice emphasizes the interrelation between the body's structure and function and often includes techniques for manipulating bones and soft tissues.

The other terms listed pertain to different aspects of health. Myopathy relates to muscle diseases, phlebitis refers to inflammation of veins, and pneumonia is an infection that inflames the air sacs in one or both lungs. Each of these terms is distinct and focuses on different systems in the body, highlighting why osteopathy is the correct choice in relation to bones.